Abstract
The purpose of this study was to evaluate factors associated with temporomandibular disorder (TMD) in children. TMD clinical signs were evaluated using the Research Diagnostic Criteria for TMD (RDC/TMD; axis I), and subjective symptoms were evaluated using a structured questionnaire. Eighty-two children were selected, 40 with TMD (19 boys and 21 girls, mean age 9.84 ± 1.53 and 9.71 ± 1.30 years, respectively) and 42 without TMD (21 boys and 21 girls, mean age 10.27 ± 1.63 and 9.9 ± 1.37 years, respectively). Intra- and extra-oral examinations were carried out to determine the myofunctional characteristics of the masticatory system. The Hospital Anxiety and Depression Scale (HADS) was used to assess anxiety and depression. Data were analyzed using descriptive statistics and bivariate analysis followed by multiple logistic regression (α = 0.05). In bivariate analysis, the variables of open lips, anxiety, and depression had a p value < 0.15 and were entered into the multivariate logistic regression model. The most significant predictor factors were the presence of open lips (odds ratio = 5.42, p = 0.034) and anxiety (odds ratio = 18.59, p < 0.001). Thus, anxiety levels and open lips were associated with TMD in children. Owing to the cross-sectional design of the present study, the associations observed may have a bidirectional relationship.
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